Most of my post was about Serverless Framework but we support CDK as well (with SST https://github.com/serverless-stack/serverless-stack).

A couple of things that we do for CDK that's different from CodePipeline:

- Setting up environments is really easy, we support PR and branch based workflows out of the box.

- We automatically cache dependencies to speed up builds.

- And we internally use Lambda to deploy CDK apps, which means it's basically free on Seed (https://seed.run/docs/adding-a-cdk-app#pricing-limits)!